JPS6016603A - Construction of wood brick - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a method for constructing wooden bricks.

Wooden bricks as a paving material have a better walking feel than concrete pavements, are better at absorbing and mitigating vibrations, and blend well with the surrounding landscape, so they have recently been used as road surfaces in parks, etc. It is expected that it will become more popular in the future as its utility value is recognized, such as when it is partially constructed.

However, the conventional method of constructing wooden bricks is to lay individual wooden bricks by eye with appropriate gaps on a roughly smooth base made of air-kneaded mortar, and then use a mallet etc. to spread the entire top surface of the wooden bricks. Pound the wooden bricks so that there are no unevenness and that the lower part of the wooden bricks is slightly buried in the dry mortar, then pour molten asphalt into the gap between the bricks from the top of the wooden bricks to a little below and harden it. One method is to add sand for joints on top, and the other is to use molten asphalt on a base that has been smoothed with mortar or concrete, and then lay individual real bricks by eye with appropriate gaps and then place molten asphalt in the gaps. Two methods are known: one injects and hardens asphalt in the same manner as above, and then pours sand for joints on top. However, with the former method, it takes time to lay the wooden bricks on the base and then pound the top surfaces of the wooden bricks with a mallet, etc., and when constructing over a large area, the expansion of the wooden bricks due to moisture absorption is absorbed only by the asphalt poured into the gaps. There was a problem that the wooden bricks fixed to the dry mortar base would separate and float. In addition, the latter method attempted to solve the former problem by using molten asphalt to bond wooden bricks to the mortar base, but since molten asphalt has the property of rapidly solidifying as the temperature decreases, it is difficult to use molten asphalt. When laying wooden bricks using wood bricks, it is necessary to work quickly, and therefore it is possible to paste only a few areas at a time, making construction particularly difficult in winter or in cold regions. Furthermore, if water droplets fall on the molten asphalt that has been sprayed on the base, not only will the asphalt splatter and pose a danger to humans, but also problems such as poor adhesion to the base will frequently occur when wooden bricks are laid in damp conditions. Ta. Furthermore, a common problem with both methods is that pouring the molten asphalt quickly into the narrow gaps between the wooden bricks without solidifying it and without adhering to the top surface of the wooden bricks requires a great deal of skill, and the asphalt melting equipment and Special equipment was required to pour the asphalt. In addition, although conventional construction methods use a water system to lay the bricks, most of the work is done by visual inspection, which results in poor work efficiency, resulting in uneven gaps between the wooden bricks, and a lack of harmony with the surrounding landscape, making the product difficult to walk on. It was a devaluation of the value.

The present invention solves the drawbacks and problems of the conventional brick construction method, is easy to construct, does not pose any operational hazards, and has good adhesion to the base of wooden bricks, especially when wet wooden bricks are used. The purpose was to provide a method for constructing wood bricks that does not reduce adhesive strength even after use (and has sufficient adhesive strength to accommodate the expansion and contraction of the wooden bricks, is durable, and has low construction costs). That is, the wooden brick construction method of the present invention involves bonding wooden bricks to a mortar or concrete base using asphalt emulsion, rubber latte nox, or a mixed emulsion thereof, and creating a predetermined gap. The bricks are laid out in a predetermined shape, and the asphalt emulsion, rubber latex, or a mixture of one or more selected from the group consisting of the asphalt emulsion, rubber latex, or a mixed emulsion thereof, and a rubber-like elastic material or aggregate are placed in the gaps between the laid bricks. This method of constructing wood bricks consists of filling the wood with a mixture of:

Next, to explain the construction method of the present invention step by step, first, a book is formed from relatively hard wood such as Hinoki or Karamatsu into an appropriate size, for example, 50 to 150 m in length and width and 10 to 200 mm in height. Prepare many bricks.

Next, the site where the wood bricks are to be constructed is leveled and mortar or concrete is laid approximately evenly to form a foundation and subsurface, and asphalt emulsion or rubber latex is approximately evenly spread on this subsurface. Asphalt emulsions include anionic emulsions and cationic emulsions depending on the type of emulsifier, as well as rubber asphalt emulsions mixed with rubbers such as nitrile rubber, and resin asphalt emulsions mixed with resins. Various kinds of rubber latte Nox and recycled rubber latex Nox are commercially available, but in the present invention, not only these alone but also mixed emulsions of various asphalt emulsions and rubber latex can be widely used. It can be selected and used as appropriate depending on the type of brick tree, construction site, etc. Spraying asphalt emulsion, rubber latte nox, or a mixed emulsion of these (hereinafter collectively referred to as asphalt emulsion, etc.) The amount is 1 rJ for the mortar base surface.
The amount may be about 1 to 5 p, preferably about 2 to 4 p, but there is no problem even if the amount is too large.

Next, the morkle with asphalt emulsion etc. sprinkled on it is laid out on the concrete base surface with wood bricks in a predetermined shape G with the end surface facing the pavement. (You can also lay out the water system and lay it out along this line.) As shown in Figures 1 to 3, it is possible to use a frame assembled using rigid rectangular materials such as round steel. can be laid out quickly.

Figure 1 shows a houndstooth frame 2, and Figure 2 shows a board 4 and a frame 3.
A plan view of each is shown. ■ is wood brick.

FIG. 3 shows a plan view of a frame 4 in a houndstooth check pattern in which the shape of the single lattice is formed into a rectangle to match the brick 1' having a rectangular planar shape. In addition, the shape of the frame body can be formed in various ways according to the shape of the brick and the construction shape. In this case, the width of the material for assembling the frame is selected to be within a range that minimizes the deflection of the frame, making it easy to handle, and absorbing the dimensional errors of the wooden bricks. % or more and about 80% or less.

In order to lay out wooden bricks using such a frame, as shown in Figures 1 to 3, the bricks can be laid out along one corner of a single lattice, and asphalt emulsion or the like can be used as an adhesive medium quickly. It can be fixed to the mortar base. The area of construction per time using such a frame is not particularly limited, but from the viewpoint of handling of the frame, a side length of about 3 m is preferable.

Next, a mixture of one or more selected from rubber-like elastic bodies or aggregates and the asphalt emulsion, etc. is applied to the gaps (joints) between the bricks that are adhesively fixed to the mortar or concrete base surface. Fill.

As the rubber-like elastic body, rubber materials made of powdered or granular natural rubber, recycled rubber, synthetic rubber, etc. are preferably used, and as the synthetic rubber, silicone rubber, sulfide rubber, urethane rubber, acrylic rubber, butyl rubber, etc. Can be used.

Further, as the aggregate, inorganic materials such as gravel, sand, glass particles, iron scraps, and slag can be used. These rubber-like elastic bodies or aggregates (hereinafter referred to as aggregates, etc.) have a bulking effect to close the joints between the wooden bricks, provide elasticity to absorb the expansion and dimensional errors of the wooden bricks, and dry the wooden bricks. For the purpose of restraining the expansion of cracks due to cracks, the ratio of rubber-like elastic body and aggregate is set to 1:0 to 0:1, and one or more of these can be used in an appropriate mixture. . In other words, when used in dry conditions, the ratio of aggregate is increased to increase the restraining force against cracking of the joints, and on the other hand, when used in wet conditions, rubber-like elasticity is added to the joints to accommodate the swelling of the real bricks. Increase body proportions. In addition, the particle size of aggregate etc. is not particularly limited to the size that can fit into the gaps between wooden bricks, but if these are mixed with asphalt emulsion etc. in advance and filled into the joint, it is necessary to disperse them in the emulsion etc. It is preferable that the particles be as small as possible in order to ensure uniformity, and when pouring asphalt emulsion etc. into the joints after filling the joints with aggregate, etc., the grain size of the aggregate, etc. The diameter is preferably about 1 i+m or more.

Filling the space between the wooden bricks with a mixture of aggregate, etc. and asphalt emulsion, etc. may be done by filling the aggregate, etc. as described above, and then pouring the asphalt emulsion, etc., or by dispersing the aggregate, etc. in the asphalt emulsion, etc. in advance. You can let it flow. After filling the gaps between the wooden bricks with aggregate, etc. and asphalt emulsion, etc. in this manner, the construction method of the present invention is completed by scattering sand on the surfaces thereof. FIG. 4 is a plan view showing an example of the construction state of wooden bricks constructed in a houndstooth pattern according to the present invention, and FIG. 5 is a cross-sectional view of FIG. 4.

In the figure, 1 is a wooden brick, 5 is a mortar base, 6°8 is an asphalt emulsion, etc., 7 is an aggregate, etc., and 9 is sand.

The present invention will be further explained below with reference to Examples.

Example 1 Split stone was spread to a thickness of 10 to 15 cm in a space measuring 4 m in length and width, and then hardened, and then fresh concrete was spread to a thickness of 15 cm on top of a base that was finished with a metal trowel and leveled. A commercially available anionic asphalt emulsion was uniformly dispersed at a rate of 21 parts per 1 d. On top of this, using a water system, wood bricks (90mm in length x 90mm in width x 50mm in height) made of the larch tree species (moisture content 90% by weight) were laid in a houndstooth pattern with the end side facing the paved surface. I arranged them, laid them out, and glued them together. In this case, the gap between the wooden bricks was 10 dragons.

Next, gravel sieved to a diameter of about 511 II was filled into the gaps between the wooden bricks, and then the same anionic asphalt emulsion as above was injected uniformly over the gravel at a rate of 2.52/i. The construction of the wooden bricks was completed by scattering sand into the gaps between the solid bricks to the extent that the joints were hidden.

Example 2 In the process of laying wooden bricks on a concrete surface, a frame assembled into a houndstooth grid with a single lattice size of 961 m in length and width and a total size of 1 m x 2 m was used using round steel with a diameter of 4. However, the wooden bricks were constructed using the same materials and method as in Example 1, except that the wooden bricks were laid out so as not to follow one corner of the lattice as shown in FIG.

Example 3 After laying wooden bricks using the same houndstooth frame as in Example 2, sand was added to the same anionic asphalt emulsion as in Example 1! Wooden bricks were constructed using the same monthly fee and method as in Example 1, except that the mixture at a rate of 1.5°C was injected into the gaps between the wood bricks to a point slightly below the top surface of the wood bricks. .

Comparative Example As an example of wood brick construction using the conventional method, molten asphalt was applied to a smooth mortar base of 4 m in length and width at 3 per 11 Tr.
Spread it uniformly at a ratio of Il, and use an aqueous solution to prepare wooden bricks of the same tree type and size as in Example 1 (however, the moisture content is about 8
0% by weight) were laid out and adhered in a houndstooth pattern so that the end surface was the paved surface. In this case, the gap between the wooden bricks was also 10 parts.

Next, molten asphalt 1- was poured into the gaps between the wooden bricks from the upper ends of the wooden bricks to slightly below and solidified, and Mejigawa sand was sprinkled on top of the asphalt to complete the construction.

Table 1 shows the results of comparing the time required for each construction process between the wooden brick construction according to the present invention shown in Examples 1 to 3 and the conventional method shown in the comparative example. there were. The numbers in the table indicate the required time per person.

As is clear from the results in Table 1 and above, when using the construction method of the present invention, it is clear that the work efficiency is improved and the time required for construction can be shortened by about 1j compared to the conventional method.

Furthermore, in addition to the above-mentioned examples, there are also examples in which construction was carried out under the same conditions as in Example 1 using commercially available recycled rubber latex instead of anionic asphalt emulsion, and nitrile instead of asphalt emulsion for bonding wooden bricks to the mortar base. An example in which construction was carried out under the same conditions as in Example 1, except that the rubber-added asphalt emulsion was spread at a rate of 1.51 per IM, and recycled rubber with a diameter of about 31 Il was used as the rubber-like elastic body and gravel with a diameter of about 5 fins was used as the aggregate. An example in which construction was carried out under the same conditions as Example 1, except that a mixture of 426 (volume ratio) was filled into the gaps between the bricks instead of gravel alone, and urethane rubber powder was used as the rubber-like elastic body. , 1:1 with gravel of about 5 tuna in diameter as aggregate.
An example in which construction was carried out under the same conditions as Example 1, except that a mixture of (volume ratio) was filled into the gaps between the wooden bricks, and only gravel was used. Various examples were carried out, including construction under the same conditions as in Example 1, except that the mixture was filled with a mixture of glass chips and glass chips.
In addition, the asphalt emulsion or rubber latex used in the present invention has properties that are almost the same as water in handling, so there is no danger at all, and as the water in the emulsion is removed, it exhibits its original adhesive properties, so it can be easily sprayed onto the mortar base. Even if the asphalt is heated, as long as water remains, there is no risk of it rapidly solidifying and losing adhesive properties due to a drop in temperature, unlike conventional molten asphalt.
Even if wet wooden bricks are used, adhesion failure does not occur unlike in conventional methods. In addition, when the wood bricks are dried to a certain extent, the water in the emulsion is absorbed into the wood bricks, and the wood bricks immediately become adhesive, resulting in extremely good workability.

In addition, the wooden brick construction method of the present invention does not require the use of conventional asphalt melting equipment, the labor required for melting, the difficulty in handling, the complexity of pouring molten asphalt into narrow gaps between real bricks, and the need for special skills and pouring techniques. In addition, wooden bricks have strong adhesive strength in both wet and dry conditions, so there is no lifting from mortar or concrete, and the adhesive strength between wooden bricks is also improved, increasing durability and product quality. It has the remarkable effect of providing a construction method with excellent value. Furthermore, by using a frame made of a rectangular material that is as rigid as the wooden brick lining, the working time required for arranging the wooden bricks can be reduced by a large amount of lJ. All in all, it has the advantage of providing a construction surface with a very good appearance.

[Brief explanation of the drawing]

Figure 1 is a plan view of a houndstooth frame, Figure 2 is a plan view of a substrate frame, Figure 3 is a plan view of a houndstooth frame with a rectangular single lattice shape, and Figure 4 is a plan view of a frame with a houndstooth check pattern. The figure is a plan view showing an example of the construction state of wooden bricks constructed according to the present invention, and FIG. 5 is a cross-sectional view of FIG. 4. 1... Real brick, 2, 3.4... Frame, 5... Mortar or concrete base, 6, 8... Asphalt emulsion, etc., 7... Aggregate, etc., 9... Sand . Patent applicant Sanyo Wood Preservation Co., Ltd.

Claims (1)

[Claims] ■) Wooden bricks are adhered to a mortar or concrete base using asphalt emulsion, rubber latex, or a mixed emulsion thereof, and laid out in a prescribed shape with a prescribed gap of 1 J, and the laid out The gaps between the wooden bricks are filled with a mixture of the asphalt emulsion, rubber latex, or a mixed emulsion thereof, and one or more mixtures selected from rubber-like elastic bodies or aggregates. How to construct wooden bricks. 2) When laying wooden bricks in a predetermined shape with a predetermined gap of 11 by adhering them to the mortar base using asphalt emulsion, rubber latex, or a mixed emulsion of these,
2. A method for constructing wooden bricks according to claim 1, characterized in that a frame assembled using rigid rectangular materials is used.